Fuel mixer



. c. HAMILTON FUEL MIXER Filed June 1925 Z fla 'zg m emm Patented Nov.2, 1926.

UNITED STATES EDWIN G. HAMILTON, OIE ANN ARBOR, MICHIGAN.

FUEL MIXER.

Application filed. June 8,

My invention relates to improvements in devices which are adapted toproduce a thorough mixture of the fuel passing through the intakepassage of an internal com-- bustion engine, and it is the object of theinvention to provide a device of this class which is of extremesimplicity, yet will be highly eflicient, will thoroughly mix the fuelfrom the spray nozzle of the carbureter, and will cause the wall of theintake passage to be substantially lined with air, so that thereis nodanger of fuel condensing on said wall, with the well knowndisadvantages.

With the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, the description beingsupplemented by the accompanying drawing.

*igure 1 is a plan View showing my invention embodied in an insertadapted to be secured between a carbureter and an intake manifold.

Figure 2 is a vertical longitudinal seetional View of the insert securedin place Fig. 3 is a vertical transverse sectional view as indicated byline 3-3 of Fig. 1.

In the drawing above briefly described, which illustrates the preferredform of my invention, the numeral 1 designates a sheet metal plateadapted to be secured between a carbureter outlet neck 2 and an intakemanifold 8, by the usual bolts 4:. This plate is formed with asubstantially circular opening 5 and is provided with a pair of opposedwings 6 which extend into said opening. These wings are provided withrelatively narrow outer ends and said wings are enlarged toward theirinner ends, the latter being preferably straight and spaced a slightdistance apart to form a slit-like fuel passage 7. Both wings are bentinto transvertely arched form and the crown portions thereof inclinetoward each other. The

' edges 8 of the wings are preferably curved and these edges are spacedinwardly from the edge wall of the opening 5, to provide a pair ofrelatively wide, crescent-shaped air passages 9, said edges beingpreferably 1925. Serial No. 35,728.

in the same plane with the body portion of the plate 1, as shown.

When the invention is in use, the spray of fuel from the nozzle of thecarbureter strikes the wings 6 and is by them drawn inwardly away fromthe wall of the intake manifold, the fuel being released through theslit 7 which insures thorough mixing thereof. While this mixing istaking place, substantially fuel-free air passes through the passages 9and, forms substantially a continuous lining for the interior of themanifold, so that the fuel will not strike the latter, condense thereon,and produce undesirable results' I have found that by the use of myinvention, I am enabled to effect a saving in fuel and furthermore, dueto the excellent combustion which is produced in the engine cylinders,there is practically no deposit of carbon.

The details shown are preferably followed, but within the scope of theinvention as claimed, it is of course possible to incorporate the wings6 in the fuel intake passage of a motor, by mounting said wings in someother way, instead of upon an insert or plate, as herein shown.

I claim i 1. In a fuel'mixer of the type described, a member having afuel mixture passageway, a pair of opposed wings projecting into thepassageway from the walls of the latter, said wings having relativelynarrow outer ends and being enlarged from said outer ends to their innerends, being transversely arched and having their crown portions inclined toward each other, the inner ends of said wings being disposed inslightly spaced relation with each other to provide a slitlike fuelpassage, the side edges of said Wings being inwardly spaced from thewall forming the passageway to provide two substantially crescent-shapedfuel mixture passages at the ends of said slit like passage.

2. A fuel mixer comprising a plate adapted to extend across the fuelintake passage of an internal combustion motor, said plate having anopening of substantially circular relation with each other to provide aslitlike fuel passage, the edges of said wings 10 being spaced inwardlyfrom the edge walls of the opening to provide two substantiallycrescent-shaped fuel mixture passages.

In testimony whereof I have hereunto af fixed my signature.

EDWIN o. HAMILTON.

